Castrol Syntec

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Oct 4, 2003 | 02:39 PM

FarmApe

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From: PA

Castrol Syntec

I just picked up a bunch of 10W-30 at and auction - with the plan to start using it. I really could not find any "opinions" of this stuff while searching....so what is the general opinion on this, especially in my 460?
I've never run a synthetic or blend before in my engine.
Thanks.

Oct 4, 2003 | 03:36 PM

c_rossman

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Joined: Mar 2003

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From: Cloud USA

I believe it is very good group III oil, I dont see any problems. Buy a good filter like a motorcraft or Wix and you will be fine.

Oct 5, 2003 | 09:59 AM

jimandmandy

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Joined: Jun 2001

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From: Running Springs CA

It is too good to waste it on 3k changes no matter what you paid. Probably good for 7500 or one year. It is Group III with some esters.

I am trying Syntec in the BMW and will post my oil analysis results here. I won't try synthetic in the Ford because of a bad rear main seal.

Jim

Oct 5, 2003 | 06:07 PM

FarmApe

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From: PA

Too Good?? I got no problem with that! It'll be interesting to wee your results. Thanks..

Oct 6, 2003 | 08:39 AM

doyall

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Joined: Aug 2003

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From: Montgomery, AL

Do a UOA at 5k before running it out to 7.5k.

Oct 6, 2003 | 09:14 AM

RR 11

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From: Centeral Alabama

I ran Syntec 10-30 in my last truck (96 F150 302 4X4) for only 205,000 no problems. When I traded the truck did not use oil between changes. I used 5,000 mile changes. A friend of mine uses the Syntec with 10,000 mile changes his 97 F150 he has 220,000 on the truck and is happy with the oil.

Oct 7, 2003 | 07:33 PM

FarmApe

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From: PA

You don't see too much commenting on Syntec here. Both my vehicles are tight and I don't lose oil between changes now, but I hear horror stories of guys switching to synthetic and start losing massive amounts of oil. I was hoping a synthetic blend might be the key.
My buddy had a 99 Sunfire with about 80K on it, very tight. Switched to Mobil 1, now he loses about 3/4 quart every 1000 miles! He was jacked. He now switched back to dino but same results.